Set of toy building blocks



FIG. 1 is a front perspective view of a set of toy building block, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is an exploded view thereof;

FIG. 10 is an enlarged detail view of area 10 in FIG. 1 ; and,

FIG. 11 is an enlarged detail view of area 11 in FIG. 2 .

The broken lines are included to show enlarged partial views in FIGS. 1, 2, 10 and 11 and form no part of the claimed design. 

CLAIM The ornamental design for a set of toy building block, as shown and described. 